Advertisements
Advertisements
Questions
Objection to Darwin's theory of natural selection.
Write the objection raised against Darwin's theory of natural selection.
Solution
Objections to Darwin’s natural selection theory:
- Natural selection theory explained “survival of the fittest” but not “arrival of the fittest”.
- Darwin did not take into account the hereditary principles.
- He could not provide a satisfactory explanation for the cause, origin and inheritance of variations.
- Certain useless characters are also inherited. He could not explain the inheritance of useless variations.
- He was unable to differentiate variations as hereditary and environmental variations.
APPEARS IN
RELATED QUESTIONS
Explain Darwinian theory of evolution with the help of one suitable example.
Name the scientist who influenced Darwin and how ?
Give the principles of Darwin's theory of natural selection.
How do the observations made during moth collection in pre- and post- industrialized era in England support evolution by Natural Selection?
Explain the phenomenon that is well represented by Darwin's finches other than natural selection.
State the two key concept of Darwinian theory.
Name and define the three types of natural selection.
Answer each question in ‘One’ sentence only:
Identify which one of the following is a test cross.
Give the scientific name of the organism which is cited as the classical example of "natural selection".
Briefly discuss the Theory of Natural Selection as given by Darwin.
Given alongside are two figures (A and B) showing a phenomenon that was first observed in Manchester before and after the year 1850.
Answer the following:
- What name has been given to this phenomenon?
- Give the common name and the scientific name of the insect involved in this phenomenon.
- Briefly mention why the changes shown in the two figures appeared.
- The following phenomenon provides a classical explanation of a scientific theory given by a certain scientist.
- Name and explain the said theory.
- Give the name of the scientist who gave this theory.
List any three drawbacks of Darwinism.
Answer the following question.
Explain ‘fitness of a species’’ as mentioned by Darwin.
In which book Darwin had published his theory of Natural selection?
The theory of natural selection for evolution was proposed by ______.
The more characteristics two species have in common ______
Which concept was not included in Charles Darwin’s theory of Natural Selection?
Natural selection is called ‘survival of the fittest. Which of the following statements best describes an organism?
Select the correct statement.
If the fossil of an organism is found in the deeper layers of earth, then we can predict that
Study the following cross and showing self pollination in F1, fill in the blank and answer the question that follows
Parents | RRYY | × | rryy |
Round, Yellow | wrinkled, green | ||
F1- | Rr Yy | × | ? |
Round, yellow |
Which of the following sequences fits into the organic evolution theory proposed by Charles Darwin and Alfred Wallace?
Origin of species was written by:
What are the key concepts in the evolution theory of Darwin?
Who proposed the theory of survival of the fittest?
Distinguish between directional, stabilizing and disruptive selection.
Industrial melanism was observed in ______.
Charles Darwin explained the origin of species through ______.
Which one of the following was not explained by Darwinism?
Mention four main postulates of Darwin's theory.
Define the following term:
Speciation
Differentiate between Lamarck's Theory and Darwin's Theory.